Grain-scourer



2 Sheets- Sheet l.

si. HANSON xv' J. s( LEAs.

"(No Model.)

GRAIN SCOURER.

Patenjted May 1,1883.v

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` (No Model.) 2 sheetssheet 2. Y

S.- HANSON xv J. s. LEAs.

GRAIN SGOURBR. No. 276,966. Patented May 1,1883.

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l L l lllllll n lulununm i ,y UNITED STATES PATENT OFFICE.

y swAN HANsoN,` 0E MoLINE,`AND J. sILAs LEAs, or BooK IsLANDfAssIGN- yons To THE EAENARD a ILLINOIS. I y

LEAS MANUFACTURING COMPANY, OF MOLIN E,

GRAIN-soenna.

SPECIFICATIONforming part of Letters Patent No. 276,966, dated May 1,1883.

- Application filed December 7,1882. (No model.)

Topall whom it mag/concern: y y x Be it known that we, SWAN HANsoN, ofMoline, and J. SLLAS LEAs, of Rock Island, in the county of RockIslandand State of Illinois, have invented certain new andV useful 1Improvements` in Grain-Scourers; and we do hereby declare that Athefollowing isa .full, clear, and exact description thereof, referencebeing had to the accompanying drawings,"and y I to the letters oflreference marked y thereon, y which form part of this specification, in

which y f Figure l is a vertical central section of our y y improvedsmut-mill or grain-scourer, showing the revolving beater arranged in itstwo casy lings,aud also the doors therein. Fig. 2 is a side elevationofthe beater detached from its case,showin g the beater-rods adj ustedin lines y parallel to the axis of` the beater-shaft. Fig. z is a detailof` the beater, showing the rods 'adjusted obliquely tothe beater-shaft.Fig. 4 y is a top view of the beater. Fig. 5 is a bottom view of thebeater. Fig. 6 is a horizontal l y section-of the beater, and Fig. 7 isa perspec- `tive view ofthe machine complete. 1 l This `inventionrelates to machines for cleaning grain of smut-balls, wherein a4rapidly-revolving vertical drum or beater is applied inside of ascouring 'case for cylinder, which is arranged inside of another case, aspace being left betweeni the two cases for1 the escape oi' 4the foreignmatters; and the nature ot1 our invention consists in a certain novelconstruction of the revolving beater, whereby the beat- 3 5` erfrods canbe conveniently adjusted from very `tical positions and set atanydesired angle, for4 the purpose `of scouring wheat or any of the moretender cereals-`such as barley, buck- `wheat, Staas will be fullyunderstood from f4ethe followingdescription when taken in connectionwith the annexed drawings.

A designates the frame of the machine, in I which is mounted the outercylindrical case, B, an internal scouring-cylinder, O, the beater, y andthe top case, D, together with the trunks l E E. The outer case, B,iszprovided near its i t `upper end with a large opening, a, and Vadoor, y b, for closing it. Directly opposite the said opening twoopenings, c d, are made through 5 `thescouring-cylinder C, which areboth proy vided with doors. If desired, there may he a single largeopening through the cylinder C, instead of the two openings shown. jectsof these openings will be hereinafter explained.

Inside` ot1 the scouring cylinder, and supported vertically by suitablebearings, is our` tric to the axis of the vertical shat'tJ and de- Theob! lfoimed, as shown in Figs. 4, 5, and 6ot' short i curvesj, which aretangent to a circle concen-` 74@ i scribed within the circumference ofthe beater.

The said tangential curves j are all of equal length, and they areperforated for receivingfreel the beater rods lo. These rods are passedthrough the said plates and rings from above downward, and are headed ontheir upper ends at y, and held down in their places by removablesegmental vplates i, applied over their heads, and secured to the topplate, G, by screws. This allows broken or worn'rods to be replaced bynew rods. The top and bottom plates, G G', are .secured to the verticalshaft 4J by means of set-screws m m', passed through hubs formed on saidplates.

Inside of the heater we employ a fan, K,`

which is composed of a number of radial blades, secured rigidly at theirlower ends to the bottom plate, G', and also secured rigidly at theirupper ends to a spider, L', the hub of which is made fast to the shaft Jby a setscrew or other means. The fan K is thus se cured to the shaft Jindependently of the top plate or head, G.

Ithas been above stated that the beaterrods 7c are loosely'V applied totheir plates and rings. `The object of this is, that when the set-screwm ofthe top plate or head, G, of the beater is loosened vthis head maybe moved about the axis of the shaft J, either to the right or lefthand, for the purpose of adjusting all of the beater-rods (at the sametime) IOC in lines parallel to the shaft J, or setting these rodsobliquely or at any desired angle to said shaft. The set-screw m above'referred to is accessible through the aperture c in thescouring-cylinder when the door b and the door which closes saidaperture are opened. The opening d is designed for exposing to View thebeater-rods, so that an attendant can readily ascertain the position ofthese beater-rods. By means of the` openings through the external caseand the scouring-cylinder access can be had to the interior of thelatter withoutremoving any part of the machine.v When the beater-rodsare in vertical positions parallel to the central shaft, J, and thebeater is revolved,

say, five hundred or six hundred times per miliute, the beater willscour wheat very nicely. When the rods k are inclined backward from theline of motion so that their lower ends are in advance ot'rtheir upperends, they will then hold the grain in the machine longer, and thusscour much harder. The reverse of' this is true when the top plate ismoved forward and the beater-rods are thus set so that they inclineforward. In this case the grain is moved down rapidly through themachine, and is consequently scoured less. We thus adapt the machine forscouring very tender grainsueltas barley, buckwlieat, a`nd other tendercereals.

The object of securing the fan to the shalt J independently of the topadjustable plate, G,

is, that the blades ot' the tan will not be twisted,

, and subjected to the beating action of the rods 7c and the blast of'the fan-blades K. The dust `and other line foreign matters are therebyforcibly driven through the perforations inthe cylinder C into theannular space between this cylinder and the shell or case B. These lightparticles are then drawn into and expelled from the fan-case D by therevolution ot' the fan therein. The good material, together with heavyforeign particles which are not driven through the cylinder C, isdischarged into a spout, E, near its lower end, up through which is astrong blast of air induced by the fan in the case D. Another separationthus takes place near the lower end of the trunk E, the

heavier material being discharged from this end, while the lightermatters are drawn up into the inclined bottom trunk, t', which has avalve at its lower Iend. rlhese parts are all old and well known inscourers,and are not herein claimed. They are represented in thedrawings for the purpose of showing one practical application of ourimprovements.

Having thus fully described our invention, what we claim as new, anddesire to secure by Letters Patent, is-

. -l. In a grain-scourer, the combination of a beaterhaving anadjustable head, G, on shat't J, and provided with beater-rods, thescouring-cylinder, the inclosing-case, and doors in the said cylinderand case, all constructed and adapted to operate substantially in themanner and forthe purposes described.

2. The combination, in a grain-secures, of the beater-shaft J, the iixedand adjustable plates G G', the beater-rods applied loosely

